Fosu-Mensah, 18, recently earned plaudits for how encouragingly he has emerged into the United first-team. The Dutchman, who has played at right-back, centre-back and in central midfield for the Under-21s this season, was accomplished at left-back on his senior debut in the win against Arsenal last month.

Three days later, he was combative and commanding in the narrow victory over Watford as his central defensive partner, Daley Blind, wilted.

Blind's tiredness and form might have given Fosu-Mensah a second start in the Anfield cauldron, however he will not be involved in the round-of-16 first leg.